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Hydraulics installation
28
Installation instructions geoTHERM 0020051574_04
5
5.3
Installing the direct heating mode and
DHW tank
5.3.1
Description of functions for the direct
heating mode and DHW tank (domestic
hot water cylinder).
The underfloor heating circuits are connected directly
to the heat pump. By default, this is controlled by an energy
balance controller (
¬
Ch. 9.4.2
).
The heat pump also operates a DHW tank.
5.3.2 Installation
instructions
>
Install the hydraulic components in accordance with the
local requirements and as shown in the sample hydraulic
scheme below.
>
If you do not use the optional accessory heat pump brine
filling unit for heat pumps (
56
) (
¬
Fig. 5.4
) install the
individual hydraulic components accordingly (
¬
Fig. 5.9
).
>
Connect a limit thermostat to ensure the underfloor
heating function on the heat pump.
>
Connect the VF2 flow temperature sensor to ensure the
integral energy function.
>
When starting up the unit, set Hydraulic Scheme No 3 in
the controller.
>
Ensure that there is a minimum amount of circulating
water (approx. 30 % of the standard rated volume flow).
i
If you have installed a hydraulic switch between
the heat pump and the heating installation, VF2
the temperature sensor in the supply of the
hydraulic switch must be attached to the heating
installation.
You can choose to use the VPS/2 multi storage tank as a
DHW tank.
>
When connecting the hydraulics, observe the
¬ installation instructions
for the cylinder and the
¬ geoTHERM planning information
.
The 1” diverter valve supplied in the VPS/2 multi storage
tank must be replaced by two 3-way diverter valves that
must be installed on-site . The diverter valves must be con-
nected to the LP/UV1 terminal on the controller PCB (
2
)
(
¬
Fig.
7.18
).
i
As of VWS/VWW 380/2, the VPS/2 1500 multi
storage tank must be used.
Caution: Schematic only!
These examples of hydraulic schemes do not contain all of
the shut-off and safety instruments that are required for
correct installation.
>
Observe the applicable standards and regulations.
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Страница 1: ...Installation instructions For the heating engineer GB Installation instructions geoTHERM Heat pump...
Страница 21: ...Installation Installation instructions geoTHERM 0020051574_04 21 4 4 6 Permitted modes of transport...
Страница 132: ...0020051574_04 GB 082014 Subject to change Manufacturer Supplier...